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I imagine everyone has seen code like:
public void Server2ClientEnumConvert( ServerEnum server) { switch(server) { case ServerEnum.One: return ClientEnum.ABC //And so on.
Instead of this badness we could do somthing like:
public enum ServerEnum { [Enum...
Started by kazakdogofspace on
, 6 posts
by 6 people.
Answer Snippets (Read the full thread at stackoverflow):
I would probably use struct as the type, and then throw an exception if it isn't an Enum type Jennings I read through the rules there and found: "An enum type, provided it has public accessibility does trying for Enum e in ....
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I'm trying to lookup against an Enum set, knowing that there will often be a non-match which throws an exception: I would like to check the value exists before performing the lookup to avoid the exceptions. My enum looks something like this:
public enum...
Started by davek on
, 7 posts
by 7 people.
Answer Snippets (Read the full thread at stackoverflow):
You could build a....
But I understand you don't want it.
It will probably have the best performance of all.
Public enum Fruit { APPLE("apple"), ORANGE have only a few enum values.
When I do this I usually graft it onto my enum class.
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Scala doesn't have type-safe enum s like Java has. If I have a set of related constants then what is the best way in Scala to represent those constants?
Started by Jesper on
, 6 posts
by 6 people.
Answer Snippets (Read the full thread at stackoverflow):
In order to get something most closely....
Http://www.scala-lang.org/docu/files/api/scala/Enumeration.html
Example use
object Main extends documentation by skaffman above is of limited utility in practice (you might as well use case object s).
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I have the following enum
public enum myEnum { ThisNameWorks, This Name doesn't work Neither.does.this; }
Is it not possible to have enums with "friendly names" ?
Thanks
Started by JL on
, 12 posts
by 12 people.
Answer Snippets (Read the full thread at stackoverflow):
Here's my suggestion : Use an enum type pattern.Although you null; }
You can use it like....
/// Prerequisite : All enum members should be applied them to have some friendly name .
Type" then you should use this method.
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Just a quick question regarding enums.
Say I have an enum which is just
public enum Blah { A, B , C, D }
and i would like to find the enum value of a string of for example "A" which would be Blah.A - How would it be possible to do this?
Is the Enum.ValueOf...
Started by Malachi on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
Here's a nifty utility I use:
/** * A common method for all enums since they can't have another....
A".toUpperCase()) would work :p
Using Blah.valueOf(string) is best but you can use Enum.valueOf(Blah.class, string) as well.
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What is the correct way of casting (in C++/CLI) from a native code enum to a managed code enum which contain the same enum values? Is there any difference with using the C# way of casting like for example (int) in C++/CLI.
Started by Lopper on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
If your native C++ code use unsigned....
By default the CLI enum is based on int, which should be fine in most cases.
For example, if you have a CLI enum that has an underlying type of ushort, it cannot hold a vallue of 257.
It depends.
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Hello. I was just wondering why people use enums in C++ as constants while they can use const .
Thanks
Started by Loai Najati on
, 13 posts
by 13 people.
Answer Snippets (Read the full thread at stackoverflow):
An enumeration must have all its values:
enum....
Template <int N> to as the “enum hack”) was to use an untagged enum with no instances.
use values from an enum, but not a static const int to instantiate a class.
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I've got the class object for an enum (I have a Class<? extends Enum> ) and I need to get a list of the enumerated values represented by this enum. The values static function has what I need, but I'm not sure how to get access to it from the class...
Started by landon9720 on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
Class.getEnumConstants
using reflection is simple as calling Class#getEnumConstants() :
List<Enum> enum2list(Class<? extends Enum> cls) { return Arrays.asList(cls.getEnumConstants()); }
If you know the name of the value you need:
....
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Hi,
Is there a way to persist an enum to the DB using NHibernate? That is have a table of both the code and the name of each value in the enum.
I want to keep the enum without an entity, but still have a foreign key (the int representation of the enum...
Started by Meidan Alon on
, 6 posts
by 6 people.
Answer Snippets (Read the full thread at stackoverflow):
One of the ways I would probably try out is Oran Dennison's Generic NHibernate Enum String Mapping....
Value; } }
You can use the enum type directly: http://graysmatter.codivation.com/post/Justice results on NHibernate Enum .
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Hi All
I came across thas problem that I without knowing the actual enum type i need to iterate its possible values.
if (value instanceOf Enum){ Enum enumValue = (Enum)value; }
Any ideas how to extract from enumValue its possible values ?
Thanks
Started by Roman on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
Your current code....
You can do it like soObject[] possibleValues = enumValue.getDeclaringClass().getEnumConstants();
Enum s are just lyke Class es in that they are typed.
To use reflection to find out what the list of enum values is.
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